ultra-rational

ul·tra-ra·tion·al

U u

Definitions of ultra-rational word

adjective ultra-rational agreeable to reason; reasonable; sensible: a rational plan for economic development. 1
adjective ultra-rational having or exercising reason, sound judgment, or good sense: a calm and rational negotiator. 1
adjective ultra-rational being in or characterized by full possession of one's reason; sane; lucid: The patient appeared perfectly rational. 1
adjective ultra-rational endowed with the faculty of reason: rational beings. 1
adjective ultra-rational of, relating to, or constituting reasoning powers: the rational faculty. 1
adjective ultra-rational proceeding or derived from reason or based on reasoning: a rational explanation. 1

before 1350

One of the 20% oldest English words

1350-1400; Middle English racional < Latin ratiōnālis, equivalent to ratiōn- (stem of ratiō) reason + -ālis -al1

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

A common word. It’s meaning is known to most children of preschool age. About 95% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

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